It's officially the end of an era.This Wednesday afternoon, Arrow star Stephen Amell announced that the fan-favorite superhero series will end with its upcoming eighth season. According to the actor, Season 8 will start in the fall and have a final run of 10 episodes.The actor made the surprise revelation on Twitter. "Playing Oliver Queen has been the greatest professional experience of my life, but you can’t be a vigilante forever," Amell wrote. "Arrow will return for a final run of 10 episodes this fall. There’s so much to say... for now I just want to say thank you."RELATED: No, Arrow Probably Hasn't Killed Off [SPOILER] - Yet

The news comes after rumors that the long-running superhero series might be heading towards its final season. What's more, the final stretch of episodes is likely to lead up to 2019's highly-anticipated crossover event "Crisis on Infinite Earths," which promises a multiversal shakeup of epic proportions.

Ever since last December's Arrowverse crossover "Elseworlds," which ended with the reveal that 2019's crossover would adapt the massive Crisis on Infinite Earths comic book story, it's been theorized that Oliver Queen will sacrifice his life for the greater good.

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In "Elseworlds," Queen made a deal with the all-powerful Monitor to save the lives of Barry Allen and Kara Zor-El. While we don't yet know the Emerald Archer's side of the bargain, it's widely believed that he will trade his life for theirs in "Crisis on Infinite Earths." Of course, the character's death is far from a sure thing, but the looming threat of this "Crisis" is likely to play a role in the series' end. In a follow-up live chat on Facebook, Amell said, "Something tells me, even when I'm done, I won't be gone," which may point to the actor appearing in other Arrowverse shows down the line.

The CW's Arrow first premiered in 2012 as a gritty action drama. Over time, the series' popularity would lead to the birth of an entire shared universe filled with superpowers and costumed heroes. The series would pave the way for not only to The Flash, but also Legends of Tomorrow and Supergirl.

Airing Mondays at 8 pm ET/PT on The CW, Arrow stars Stephen Amell as Oliver Queen, David Ramsey as John Diggle, Emily Bett Rickards as Felicity Smoak, Rick Gonzalez as Wild Dog, Juliana Harkavy as Black Canary, Colton Haynes as Arsenal, Kirk Acevedo as Diaz and Katie Cassidy as Black Siren.